0 reviews
Summary
Dr. John Gnassi has practiced family medicine and hospital medicine for 38 years and is affiliated with CHA Everett Hospital. He treats acid reflux, alcohol poisoning, and asthma. Dr. Gnassi earned his medical degree from Rutgers Robert Wood Johnson Medical School and completed his residency at the University of Minnesota Health Care System. He sees patients in Boston, Massachusetts, and speaks English and Spanish.
Overview based on verified provider data
Quick Facts
- 38 years of experience
- 6 insurance plans accepted
- speaks English, Spanish
- University Of Minnesota Health Care System
- 2 specialties
- 7 areas of expertise
- 1 hospital affiliation
- 1 office location
- Male
Office Location
Compare with Similar Doctors
![]() | ![]() | ![]() | ![]() |
| Dr. John Angelo Gnassi, MD | Shushanik Yegoyan, FNP | Brianna M. Knight, FNP | Maria Dalomba, FNP |
| Family Medicine | Family Medicine | Family Medicine | Family Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 38 Years of Experience | |||
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English, Spanish | Speaks English, Spanish | Speaks English | Speaks English |
| Boston , MA | Waltham , MA | Salem , MA | Salem , MA |
| Med School: Rutgers Robert Wood Johnson Medical School | |||
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. John Angelo Gnassi
Medical Specialties
Dr. John Angelo Gnassi has the following 2 specialties
Specialty Expertise
Dr. John Angelo Gnassi has the following 7 areas of expertise
Certifications, License, & Education
38 Years Experience
Dr. John Angelo Gnassi holds an active medical license in the state of Massachusetts.
Medical License
Medical Doctor with an active medical license in the state of Massachusetts.
Education & Training
Residency
Completed their residency at University Of Minnesota Health Care System.
Medical School
Graduated from Rutgers Robert Wood Johnson Medical School in 1988.
NPI Number
Dr. Gnassi's NPI number is 1629066105.
Similar doctors
Frequently Asked Questions
- Is Dr. John Gnassi accepting new patients?
- Dr. John Gnassi has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- How can I make an appointment with Dr. John Gnassi?
- You can find contact information for Dr. John Gnassi here on Vitals.
- Does Dr. John Gnassi accept my insurance?
- You can see the insurance plans that Dr. John Gnassi accepts on their Vitals profile.
- Which hospitals is Dr. John Gnassi affiliated with?
- Dr. John Gnassi is affiliated with Cha Everett Hospital.
- Where is Dr. John Gnassi's office located?
- Dr. John Gnassi's office is located at 177 Huntington Ave Ste 17-1119, Boston, MA, 02115.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Healthcare system and provider network data
Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews
Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.



